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Discussion Starter #1
I'm debating would the tire series play a really big deal in the handling. I'm trying to pick between 45 series or 50 series in the front as i have 16s. I will definetly go w/ 45 series in the front but just not sure if 50 series in the rear will change my handling a lot or not. any thoughts?
 

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Are you talking about 205 front & 225 rear on 16x7 wheels?

Its not like you have a ton of tire choices. 45-series would be my 1st choice.
 

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i prefer the look of a 45 or even 40 series tire on 16s...look much nicer....handling characteristics shouldn't differ all that much....
 

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Depending on your suspension settings, a 205/50 may rub the inside of the wheel well.
 

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Discussion Starter #5 (Edited)
sorry for not being clear on my first post. here's what I meant to say:
225/45/16 Front and 245/50/16 rear or
225/45/16 Front and 245/45/16 rear

The reason I want the 50 series in the rear is so it won't have any gap between the rear fender and the tires. i have tokkico illumina adjustable and tein s-tech for suspension.
 

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dont run a 245/50/16 in the rear. its not a tacoma, its an mr2 ;)

the 245/45 will still be a large tire, but theres no 245/40/16 so you're kinda stuck with that, even though it sucks.

a little gap looks alot better than a bigass huge truck tire!
 

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245/45/16 is a great rear tire size and will complement 225/45/16 fronts very well. Don't get the 245/50/16's, they're HUGE and don't look right (and may not fit).

I currently have 245/45/16 rears and 205/45/16 fronts, and looks-wise I wish there was a little more sidewall on the front tires just to balance out the looks of the rubber on the car. 225/45/16's shoud look great.
 

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Got this off of MR2.com:

Michelin recommended alternate tire sizes:
Front - 195/50R15 or 205/50R15 or 205/50R16
Rear - 245/45R16
'90-92 original equipment tire sizes F-195/60HR14, R-205/60HR14 (turbos are listed as having 'V' rated tires), pressure 29 psi front/32 psi rear.


My 93 Turbo has 205/50/16 on the front and 225/45/16 on the rear and it seems to work fine with a stock suspension.
 

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i ran 205/50/16 and 225/45/16 as well. great setup imo. 225/45/16 is basically stock diameter, just a tad larger (like 1.3% or something).

ive got 205/45/16 and 225/50/16's now. the 225/50's look retarded, i cant imagine a 245/50!
 

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No need to image, have a look. These are 300ZX TT wheels with 225/50-16s front & 245/50-16s rear - waay to tall, IMO. According to 1992MR2NA his fronts rubbed when new & rears only rub on hard bumps.

 

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I was looking into tire sizing for another thread, but I think it applies here too.

I found that the stock MR2 uses a tire diameter of roughly 23.25". If you change from that size by too much (and especially if you don't make similar changes to both ends) you can end up increasing understeer or oversteer. The exact effect will depend on tire diameter, width, side wall height, tire compound and tire inflation (and even your alignment). It sounds confusing, but most of it is usually not a big deal for street cars; it might come into play if you like to corner hard alot.

Another point is that as your sidewalls get shorter (smaller profile numbers), the more the tires will transmit bumps and other road imperfections into the cabin. Shorter sidewalls are generally good for cornering, but bad for ride quality.

Based I what I've observed, I think about a 245/45-16 (with a 24.6" diameter) would be about the tallest 16" tire that I would try to fit in back with replacement style struts and springs. A 225/45-16 has a 23.9" inch diameter. That leaves the difference between the front and rear tires at about .7", which should be acceptable. Another consideration is that you can also use tire presures and alignment settings to help tune cornering issues.

The sizes I used for reference can be found here: http://www.hankooktireusa.com/pdf/uploads/Ventus R-S2 Z212.pdf

You may want to re-check the sizes you decide on with your manufacturer's specs; not all tires with the same numbers are the same size. I'm sure you know most of this, and I tend to over explain - hope this helps though.
 

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I run 225/45R16s and 245/45R16s on a stock 91 suspension and people think its lowered... They're plenty tall, I wouldn't go any taller.
 

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Discussion Starter #14
Nik said:
I run 225/45R16s and 245/45R16s on a stock 91 suspension and people think its lowered... They're plenty tall, I wouldn't go any taller.

I think that's what I'm going for too.
 
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